Author: United States. Marine Mammal Commission
Publisher:
ISBN:
Category : Extinct mammals
Languages : en
Pages : 448
Book Description
The Commission reviewed 22 marine mammal taxa (i.e., species, subspecies, or population stocks) that occur regularly or entirely within U.S. waters and that are either listed as endangered or threatened under the Endangered Species Act or designated as depleted under the Marine Mammal Protection Act. The review considered methods for identifying taxa at elevated risk of extinction, evidence regarding their viability, threats to their conservation, and the current status and funding for recovery programs. The review also included an in-depth case study of the cost-effectiveness of recovery efforts for the North Atlantic right whale. Of the 22 taxa, 2 are not considered to be viable: the Caribbean monk seal is considered extinct and the AT1 population of killer whales appears to be on the verge of extinction. The remaining 20 taxa are considered viable; that is, they can persist and recover if human-related threats are identified and addressed. Historical data indicate that many wild species, including a number of marine mammal taxa, have recovered from low numbers when human-related threats were managed effectively.
The Biological Viability of the Most Endangered Marine Mammals and the Cost-effectiveness of Protection Programs
Author: United States. Marine Mammal Commission
Publisher:
ISBN:
Category : Extinct mammals
Languages : en
Pages : 448
Book Description
The Commission reviewed 22 marine mammal taxa (i.e., species, subspecies, or population stocks) that occur regularly or entirely within U.S. waters and that are either listed as endangered or threatened under the Endangered Species Act or designated as depleted under the Marine Mammal Protection Act. The review considered methods for identifying taxa at elevated risk of extinction, evidence regarding their viability, threats to their conservation, and the current status and funding for recovery programs. The review also included an in-depth case study of the cost-effectiveness of recovery efforts for the North Atlantic right whale. Of the 22 taxa, 2 are not considered to be viable: the Caribbean monk seal is considered extinct and the AT1 population of killer whales appears to be on the verge of extinction. The remaining 20 taxa are considered viable; that is, they can persist and recover if human-related threats are identified and addressed. Historical data indicate that many wild species, including a number of marine mammal taxa, have recovered from low numbers when human-related threats were managed effectively.
Publisher:
ISBN:
Category : Extinct mammals
Languages : en
Pages : 448
Book Description
The Commission reviewed 22 marine mammal taxa (i.e., species, subspecies, or population stocks) that occur regularly or entirely within U.S. waters and that are either listed as endangered or threatened under the Endangered Species Act or designated as depleted under the Marine Mammal Protection Act. The review considered methods for identifying taxa at elevated risk of extinction, evidence regarding their viability, threats to their conservation, and the current status and funding for recovery programs. The review also included an in-depth case study of the cost-effectiveness of recovery efforts for the North Atlantic right whale. Of the 22 taxa, 2 are not considered to be viable: the Caribbean monk seal is considered extinct and the AT1 population of killer whales appears to be on the verge of extinction. The remaining 20 taxa are considered viable; that is, they can persist and recover if human-related threats are identified and addressed. Historical data indicate that many wild species, including a number of marine mammal taxa, have recovered from low numbers when human-related threats were managed effectively.
Endangered, Threatened, and Depleted Marine Mammals in U. S. Waters: a Review of Species Classification Systems and Listed Species
Author: Marine Mammal Commission
Publisher: CreateSpace
ISBN: 9781505546293
Category :
Languages : en
Pages : 88
Book Description
In its 2004 appropriations bill, Congress directed the Marine Mammal Commission to - review the biological viability of the most endangered marine mammal populations and make recommendations regarding the cost-effectiveness of current protection programs. This report identifies - the most endangered marine mammal populations in U.S. waters, evaluates the criteria and methods used to place marine mammal species and populations on the major protected species lists, and reviews current data on their biological status.
Publisher: CreateSpace
ISBN: 9781505546293
Category :
Languages : en
Pages : 88
Book Description
In its 2004 appropriations bill, Congress directed the Marine Mammal Commission to - review the biological viability of the most endangered marine mammal populations and make recommendations regarding the cost-effectiveness of current protection programs. This report identifies - the most endangered marine mammal populations in U.S. waters, evaluates the criteria and methods used to place marine mammal species and populations on the major protected species lists, and reviews current data on their biological status.
Annual Report of the Marine Mammal Commission
Author: United States. Marine Mammal Commission
Publisher:
ISBN:
Category : Marine mammals
Languages : en
Pages : 368
Book Description
Publisher:
ISBN:
Category : Marine mammals
Languages : en
Pages : 368
Book Description
Marine Mammal Ecology and Conservation
Author: Ian L. Boyd
Publisher: Oxford University Press
ISBN: 0191550795
Category : Science
Languages : en
Pages : 475
Book Description
Marine mammals command a high level of public attention, reflected in specific legislation for their protection and management in many countries. They also present particular challenges to ecologists and conservation biologists. They are mostly difficult to observe, they occupy an environment that is vast in its three dimensional extent, there are often perceived conflicts between marine mammals and people, and furthermore several species are now close to extinction. Marine mammals have some intriguing features in their biology - the ability to dive to crushing depths, to perform breath-hold dives that defy our current understanding of mammalian physiology, and many have an ability to hunt down prey using sophisticated sonar that we are only just beginning to understand. Many species also have complex social structures. We still have much to learn about these extraordinary animals so a comprehensive and authoritative overview of current methodology is now timely. The intention of this book is both to summarize the state-of-the-art and to encourage innovation and further progress in this research field.
Publisher: Oxford University Press
ISBN: 0191550795
Category : Science
Languages : en
Pages : 475
Book Description
Marine mammals command a high level of public attention, reflected in specific legislation for their protection and management in many countries. They also present particular challenges to ecologists and conservation biologists. They are mostly difficult to observe, they occupy an environment that is vast in its three dimensional extent, there are often perceived conflicts between marine mammals and people, and furthermore several species are now close to extinction. Marine mammals have some intriguing features in their biology - the ability to dive to crushing depths, to perform breath-hold dives that defy our current understanding of mammalian physiology, and many have an ability to hunt down prey using sophisticated sonar that we are only just beginning to understand. Many species also have complex social structures. We still have much to learn about these extraordinary animals so a comprehensive and authoritative overview of current methodology is now timely. The intention of this book is both to summarize the state-of-the-art and to encourage innovation and further progress in this research field.
Ecology and Conservation of the Sirenia
Author: Helene Marsh
Publisher: Cambridge University Press
ISBN: 052188828X
Category : Nature
Languages : en
Pages : 543
Book Description
A synthesis of the ecological and related knowledge pertinent to understanding the biology and conservation of dugongs and manatees.
Publisher: Cambridge University Press
ISBN: 052188828X
Category : Nature
Languages : en
Pages : 543
Book Description
A synthesis of the ecological and related knowledge pertinent to understanding the biology and conservation of dugongs and manatees.
Nominations to the U.S. Coast Guard, the Department of Commerce, the National Transportation Safety Board, the Marine Mammal Commission, and the Amtrak Board of Directors
Author: United States. Congress. Senate. Committee on Commerce, Science, and Transportation
Publisher:
ISBN:
Category : History
Languages : en
Pages : 120
Book Description
Publisher:
ISBN:
Category : History
Languages : en
Pages : 120
Book Description
Science, the Departments of State, Justice, and Commerce, and Related Agencies Appropriations for 2006
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Science, State, Justice, and Commerce, and Related Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 986
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 986
Book Description
Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year 2007
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 932
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 932
Book Description
Commerce, Justice, Science, and Related Agencies Appropriations for 2014
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies
Publisher:
ISBN:
Category : Administrative agencies
Languages : en
Pages : 392
Book Description
Publisher:
ISBN:
Category : Administrative agencies
Languages : en
Pages : 392
Book Description
Departments of Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year ...
Author: United States. Congress. Senate. Committee on Appropriations
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 900
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 900
Book Description